Overview
Erythromycin is a macrolide antibiotic discovered in 1952, derived from the bacterium Streptomyces erythreus. It is widely used in both human and veterinary medicine to treat bacterial infections. The drug works by inhibiting bacterial protein synthesis, making it effective against a variety of Gram-positive and some Gram-negative bacteria. Erythromycin is available in multiple forms, including tablets, capsules, ointments, and injectable solutions. It is particularly useful for patients allergic to penicillin, serving as an alternative treatment for similar infections.
Physical and Chemical Properties
Erythromycin is a white to off-white crystalline powder with a molecular weight of 733.93 g/mol. It has a melting point range of 135-140 °C and a density of 1.18 g/cm³. The compound is slightly soluble in water but dissolves well in organic solvents like alcohol and chloroform. Its stability is affected by light, moisture, and temperature, necessitating proper storage conditions. Erythromycin is sensitive to acidic environments, which can degrade its efficacy, prompting the development of acid-stable derivatives like erythromycin estolate.
Main Applications
Erythromycin is primarily used to treat infections caused by susceptible bacteria, including respiratory tract infections (e.g., pneumonia, bronchitis), skin infections (e.g., acne, impetigo), and sexually transmitted diseases (e.g., chlamydia). It is also employed in veterinary medicine for similar purposes. In addition to its therapeutic uses, erythromycin is sometimes used as a prophylactic antibiotic for patients at risk of bacterial endocarditis. Its broad-spectrum activity and relatively low toxicity make it a versatile choice in clinical settings.
Safety and Storage
Erythromycin is generally safe but can cause side effects such as nausea, vomiting, and diarrhea. Rare but serious adverse effects include liver toxicity and allergic reactions. Patients with pre-existing liver conditions should use it with caution. Proper storage is crucial to maintain the drug's efficacy. Erythromycin should be kept in a cool, dry place, protected from light and moisture. Bulk procurement for B2B buyers requires adherence to Good Storage Practices (GSP) to ensure stability and shelf life.
B2B Procurement Guide
When procuring erythromycin in bulk, buyers should prioritize suppliers with certifications such as GMP (Good Manufacturing Practice) and ISO standards. Key factors to consider include purity (typically ≥98%), batch consistency, and compliance with pharmacopeial standards like USP or EP. Price ranges vary based on quantity, purity, and supplier reputation. It is advisable to request samples for quality testing and to establish long-term contracts with reliable manufacturers to ensure consistent supply and competitive pricing.